Stabilized, bleach containing, liquid detergent compositions

Abstract

Aqueous, bleach containing, liquid detergent compositions, which are stabilized against bleach decomposition due to contamination by transition metal traces are disclosed. The stabilizing effect is obtained by using specific diphosphonate compounds which are non-precipitating builders.

I claim: 
     
       1. An aqueous liquid detergent composition comprising a solid, water soluble peroxygen bleach selected from the group consisting of salts of perborates and percarbonates, characterized in that it further contains from 0.01% to 5% by weight of a compound selected from the group consisting of ##STR7## wherein R is a C 2  to C 5  alkyl or alkenyl group; ##STR8## wherein R 1  is H or CO 2  H, and, wherein x and y are integers which refer to the mole proportions, and the mole ratio x:y is less than 30:1; and (iii) mixtures thereof; said composition further comprising an enzyme. 
     
     
       2. A composition according to claim 1 wherein said compound is ##STR9## 
     
     
       3. A composition according to claim 1 wherein the compound is of the formula (ii) and the ratio of x:y is 4:1. 
     
     
       4. A composition according to claim 3 wherein said compound is of the formula (ii), and said compound has a molecular weight of from 1000 to 5000. 
     
     
       5. A composition according to claim 4 wherein said compound has a molecular weight of 2000. 
     
     
       6. A composition according to claim 1 characterized in that it further comprises diethylene triamine penta (methylene phosphonic acid). 
     
     
       7. A composition according to claim 1 characterized in that it contains a water-miscible organic solvent. 
     
     
       8. A composition according to claim 7, characterized in that the water miscible organic solvent is ethanol. 
     
     
       9. A composition according to claim 1 having a pH of at least 9.